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Question: 1. If the speed of an electron in the ground state of the Bohr model is uncertain by 1%, what is the uncertainty in position?
2. Using the Heisenberg uncertainty relation in the form pr = h ", derive an expression for the minimum radius r1 and energy E1 of a hydrogen atom.
Determine the maximum tensile, compressive, and shear stresses at points A and B on the bicycle pedal crank shown in the figure.
Does this mean that F is a conservative force? Give reasons for your answer.
a laminated thick-walled hydraulic cylinder was fabricated by shrink-fitting a steel e 200 gpa and v 0.30 jacket
A Dual cycle has a compression ratio of 15:1. The state at the beginning of compression is 14.4psi and 60F. The volume ratio during the constant pressure part of the heat addition process is 2:1. The pressure ratio during the constant volume heat add..
Knowing that the coefficient of static friction is 0.30 at all surfaces of contact, determine the smallest force P that should be applied as shown to one of the wedges.
Using moment distribution,construct the influence lines for the vertical reaction at support A and the moment in the beam at the face of the. wall) - Evaluate the ordinates of the influence line at 6-ft intervals.
water in a pistoncylinder is at 101 kpa 25 c and mass 0.5 kg. the piston rests on some stops and the pressure should be
a 50 cm diameter 100 cm high cylindrical tank is partially filled with 50 cm high liquid with density 870 kgm3. the
Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobaric ally until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperatur..
Derive an analytical expression for the temperature distribution along the length of the rod and for various time values.
The following table gives the characteristics of a building in Houston, TX. Determine the cooling load for July 30 at solar noon. Any information regarding the load not given may be assumed or neglected.
an electric water heater having 0.2 m3 capacity employs an electric heater to warm the water from 22degc to 55degc. the
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